There are 10 Michigan State Parks open for winter camping. Both Mitchell and Traverse City have heated restrooms available in the winter. The other eight are: Algonac, Bay City State Park, Fort Custer, Ludington, North Higgins Lake State Park , Rifle River Recreation Area, Tahquamenon Falls and Waterloo Recreation Area-Portage campground.
Check out the "GO-Get Outdoors" web site for activities planned at State Parks, Recreation Areas and Harbors.
Many parks have rustic cabins and mini cabins available in winter. And Pinckney and Porcupine Mountains Wilderness State park rent out yurts for winter camping.